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While the state of Virtual/Mixed/Augmented Reality (XR) is constantly in flux and improving all the time, Unity have announced with Unity 2019.3 that their built-in XR support is being deprecated.

Unity 2019.3 is the next upcoming (Edit: now out after we published this) major build of the Unity game engine, currently in Beta and when released they're going to be pushing their newer unified XR plugin framework. It makes sense, giving developers of XR hardware the chance to get updates out a lot quicker, rather than waiting for engine upgrades.

With this change, Unity developed official XR plugins for "supported platforms" including ARKit, ARCore, Microsoft HoloLens, Magic Leap, Oculus, Windows Mixed Reality and PlayStation VR. Notice anyone missing? Valve. That's because Valve are developing their own OpenVR Unity XR plugin in-house. Hopefully this process will enable Valve to improve SteamVR support in Unity for Linux, since they will control the plugin.

Unity 2019.3 is also the first version of Unity that will properly support IL2CPP on Linux which the lack-of has caused issues for some developers.

You can read more about Unity's plans for XR on their blog post.

Article taken from GamingOnLinux.com.
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7 comments

dejaime 28 January 2020 at 1:08 pm UTC
Unity 2019.3 is really building up to a great release.
sub 28 January 2020 at 1:33 pm UTC
And still no Valve Index restock.
Damn, I want to buy this kit before I come to the conclusion that it is too expensive.
aokami 28 January 2020 at 1:34 pm UTC
Is this following any of the openXR specification ?
Is valve planning on doing that on their side ?
Ehvis 28 January 2020 at 2:01 pm UTC
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I was worried for a second because there really is no working OpenXR solution for Linux yet. But it appears that they will keep the OpenVR support (in deprecated state) until Valve adds their own plugin into the XR framework.
Shmerl 28 January 2020 at 3:27 pm UTC
How is the progress of Valve replacing OpenVR with OpenXR? OpenXR spec came out a while ago already.
slembcke 28 January 2020 at 5:34 pm UTC
I'd be really interested to see where this ends up. The Unity editor kinda-mostly works on Linux, but in it's "preview" state is still missing some pretty big features. (ex: multi-threaded rendering, or the graphics debugger that relies on it)

VR in the Unity editor on Linux sometimes kinda-sorta works. Beyond the highly mediocre performance (editor struggles to run at 30 hz, while builds run just fine at 120 hz), it's just really unstable with regular lock ups. My current project requires restarting Unity every time I hit the play button a second time. GLX gets stuck waiting forever on a fence. I've been back to developing on Windows for the time being. Hard to blame them for not having stellar support for a niche product on a niche platform though. I'm thrilled that it works at all.

Hopefully the change will help clear out some of the dust and cobwebs.
Orkultus 28 January 2020 at 11:15 pm UTC
Like we get any Native VR games to begin with. I know we have a few...but.
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